import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const router = new VueRouter({
  routes:[
    {path:'/',redirect:'/login'},
    {path:'/login',component:Login},
    {
      path:'/home',
      component:Home,
      redirect:'/welcome',
      children:[
      {path:'/welcome',component:Welcome},
      {path:'/users',component:Users},
      {path:'/rights',component:Rights},
      {path:'/roles',component:Roles},
      {path:'/categories',component:Cate},
      {path:'/params',component:Params},
      {path:'/goods',component:GoodList},
      {path:'/goods/add',component:Add},
      {path:'/orders',component:Order},
      {path:'/reports',component:Report}
    ]}
  ]
})

//挂载路由导航守卫，判断登录关键界面是否有权限
router.beforeEach((to,from,next)=>{
  //to表示要访问的路径
  //from代表从哪个路径跳转过来
  //next表示放行函数,next()放行,next(/login)强制跳转
  if(to.path==='/login') return next();
  //获取token
  const tokenStr=window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})

export default router
